How do you include a Feynman diagram in a beamer presentation?
\documentclass{beamer}
\usepackage{amsmath, amsthm, amssymb,latexsym}
\usepackage{slashed}
\usepackage{graphicx}
\usepackage{pgfplots}
\usepackage{bbm}
\usepackage{epstopdf}
\usepackage{hyperref}
\usepackage{tikz}
\usepackage{tabularx}
\usetikzlibrary{calc,decorations.markings}
\usepackage{feynmp}
\mode<presentation> {
\usetheme{Warsaw}
}
\section{Theory}
\subsection{The diagram}
\frame
{
\frametitle{the title etc}
\begin{figure}
\begin{fmffile}{Feynman1}
\fmfframe(-20,-30)(-20,-100){
\begin{fmfgraph*}(40,40)
\fmfleft{i1,i2,i3}
here is the feynmp code....\end{fmfgraph*}
}
\end{fmffile}
\end{figure}
}
\end{document}
The Feynman diagram doesn't show up for me. What am I doing wrong, any suggestions?
fragile
.\includegraphics
??